Inflatable watercraft often carry the risk of damage cylinders or pyeol Or they can use snags, sharp stones, or shells, and owners who go out into the water in difficult conditions, sooner or later, they think about additional protection, and PVC armor becomes not just an accessory, but a necessity that prolongs the life of expensive property.
The modern market offers many solutions, from lightweight patches to full-fledged sheet protection systems, the choice of the specific type of protection depends on the model of your vessel, the frequency of use and the conditions in which you plan to sail. armor adds weight, which can significantly affect driving performance and load capacity.
In this article, we will discuss in detail the types of protective materials, their advantages and disadvantages, you will learn how to properly prepare the surface for installation and what mistakes are most often made by beginners when tuning. tightness Avoid costly repairs in the future.
Why is it necessary to protect the bottom of the boat?
The main function of the protective layer is to prevent mechanical damage when in contact with the bottom relief. cylinders Without additional protection, even a small knot or a sharp stone can cause critical injury.
The armored bottom also protects the boat from abrasion, and the sand, small pebbles and abrasive suspension in the water act as sandpaper, gradually thinning the material. PVCOver time, this leads to loss of strength and the appearance of microcracks, which are difficult to see visually until the leak appears.
⚠️ Attention: Using heavy armor on lightweight inflatable boats can shift the center of gravity and degrade stability. Always consider your vessel's payload capacity before installing massive sheets.
An added bonus of quality protection is noise reduction, and the splash of water against a hard sheet or dense fabric is less heard than the waves hitting inflatable tubes, which is especially appreciated by fishermen who care about silence when fishing carefully. defence It helps to keep the heat inside the cockpit, acting as an additional insulator from cold water.
Types of materials for booking
Choosing a material to protect the bottom is always a trade-off between weight, strength and cost, and there are several types of solutions that are most popular today, each with its own specifications.
- 🛡️ Aluminum sheet - a classic solution that provides maximum rigidity and protection from punctures, but significantly weighting the boat.
- 🧶 Reinforced fabric (Oxford) - A lighter version, which often comes in the factory configuration, protects well from abrasion, but weaker against sharp objects.
- 🌊 Specialized composites Modern materials that combine the lightness of fabric and the strength of polymers are often used in premium models.
Aluminum sheets 2 to 4 mm thick are considered “heavy artillery” and are ideal for boats that are often stranded on rocky shores or used as a full-fledged boat with a powerful motor, but the weight of such a bottom can reach 10-15 kg, which will significantly affect the speed of the sleeve.
Fabric linings from Oxford or similarly dense tissues with PVC The middle ground is the coating, and they are easy to glue, they don't require complex maintenance, they add minimal weight, and their main disadvantage is that they're vulnerable to sharp spikes and metal objects at the bottom of the reservoir.
specifications comparison table
To make the choice easier, we compare the basic parameters of different types of protection, and the numbers can vary depending on the particular boat model and the thickness of the materials used.
| Parameter | Aluminum leaf | Fabric lining | Composite |
|---|---|---|---|
| Weight (per boat 3.2m) | ~12 kg | ~1.5 kg | ~3 kg |
| Puncture protection | High. | Medium | High. |
| Difficulty of installation | High. | Low. | Medium |
| Impact on speed | Substantial | Minimum | Minor. |
When choosing, you should also consider the type paiola For inflatable floors, heavy aluminum is not suitable because it deforms the structure, and in such cases, lightweight fabric solutions or special composite mats are optimal.
Aluminum armor costs are usually higher, but its lifespan is virtually unlimited. Fabric options are cheaper but require periodic replacement after several seasons of active use. Composites occupy the niche of expensive but durable solutions for demanding users.
Preparation of the surface before installation
The quality of the adhesive protection depends on the preparation of the surface, even the most expensive glue will not keep the armor on dirty or greasy. PVCThe process requires thoroughness and adherence to technology.
First, you need to completely clean the bottom of the boat of sand, silt and algae. Use warm water with a mild detergent, but avoid aggressive chemicals that can damage the structure of the material.
- 🧼 Degreasing is a mandatory step for which acetone, alcohol or special cleaners for PVC are used.
- 🌡️ Temperature mode - it is better to work at air temperature from +15 C to +25 C, otherwise the glue may not catch.
- 🧽 Grinding – easy surface treatment with fine sandpaper improves adhesion, but do not overdo it so as not to damage the protective layer of the fabric.
Pay special attention to the joints and joints of cylinders, and that's where the dirt and grease accumulate most often, and if you skip those areas, air bubbles can form under the armor, which will eventually lead to detachment.
☑️ Checklist of preparations
Protection installation technology
The installation process depends on the material chosen. For fabric linings, the most common method is cold or hot gluing with two-component polyurethane adhesive. Aluminum sheets can be attached both to glue and mechanically through special eyelets.
When working with glue, it is important to observe the exposure time. Apply the composition on both glued surfaces, let it dry until it is stuck (usually 10-15 minutes), and then press tightly. For best results, use a roller, driving air from the material under the center to the edges.
⚠️ Warning: Do not use chloroprene-based adhesives (e.g., "Moment" classic) for the responsible nodes. They lose elasticity over time and can detach under load. Only polyurethane compounds!
If you're installing an aluminum sheet, make sure that the edges of the sheet are not sharp barbs. They can rub the cylinders from the inside when the boat is moving. The edges of the metal are better wrapped with rubber tape or bent. When you're mechanically fastened, use wide washers to spread the load on the fabric.
The secret of reliable gluing
For maximum strength, professionals recommend heating the glued surfaces with a building hair dryer to a temperature of 40-50 degrees before applying the second layer of glue, which activates the PVC molecules and creates a stronger bond.
Influence of armor on driving performance
Putting extra weight on the bottom of a boat inevitably affects its behavior on the water, the main change is the increase in planing time, the engine requires more power to tear the heavy boat away from the water.
The armor itself can improve hydrodynamics. The hard aluminum bottom creates a smoother surface than soft inflatable tubes, which allows the boat to hold its course better and travel the wave softer. The speed at full gas can even increase slightly by improving contours if the weight is not critical.
Fuel consumption increases by about 10 to 15 percent when heavy armor is used, which is because the engine has to work in a more loaded mode. For owners of low-power engines (2-5 hp), installing massive protection can make operating the boat almost impossible.
Expert advice: If you have heavy armor, try lowering the engine's lower unit a little, which will help you get the boat to planing earlier and compensate for the loss of dynamics.
Care and maintenance of protective coating
The armored bottom requires as much care as the boat itself. Sand and small stones stuck between the protection and the cylinders, when moving, work like an abrasive. Therefore, after each fishing, it is recommended to remove the boat from the water and thoroughly wash the protected space, if this is structurally possible.
Check the edges of the protective sheet or fabric regularly, the appearance of bullies or detachments is a signal for immediate repair, ignoring minor defects will cause water to fall under the armor, and the process of rotting or corrosion (in the case of metal), as well as wiping the main material of the boat will begin.
Keeping a boat with aluminum armor installed is better in straightened form or rolled up in a large roll, avoiding sharp bends at the junction of metal and fabric. Fabric linings are less demanding, but it is also advisable to remove them periodically for drying and cleaning.
Properly selected and installed armor prolongs the life of the boat 2-3 times, recouping its cost due to the absence of costs for frequent repair of punctures.
Frequently Asked Questions (FAQ)
Can I glue an aluminum sheet to the inflatable floor?
Not recommended. inflatable floor (inflatable)AirDeck) has a complex relief structure and changes geometry under pressure. A hard sheet of aluminum will not be able to repeat these curves, which will depressurize the adhesive seam and damage the inflatable floor itself.
How to remove the old protection without damaging the boat?
Use a building hair dryer. Heat the adhesive seam to 60 to 70 degrees, the adhesive will soften, and you can gently peel the material off with a blunt spatula. The glue residue is removed with a special solvent for PVC.
Does the engine noise increase when you install armor?
On the contrary, a hard bottom often reduces the resonant effect, but the noise from water impacts on a flat metal bottom at a high wave can increase if the boat does not go into sleeving.
Does the armor affect the manufacturer’s warranty?
In most cases, self-sticking the bottom with third-party materials removes the boat from the warranty. If you plan to glue the reservation, do so after the warranty period has expired or contact an authorized service center.